add KR

Final control/4/Otvet.py

@@ -0,0 +1,44 @@
+import json
+
+
+class Config():
+    def __init__(self, filename):
+        self.filename = filename
+
+    def load(self):
+        try:
+            with open(self.filename, "r", encoding="utf-8") as file:
+                return json.load(file)
+        except FileNotFoundError:
+            return {}
+
+    def save(self, data):
+        with open(self.filename, "w", encoding="utf-8") as file:
+            json.dump(data, file,indent=4, ensure_ascii=False)
+
+    def get(self, key, default=None):
+        data = self.load()
+        return data.get(key, default)
+
+
+    def set(self, key, value):
+        data = self.load()
+        data[key]=value
+        self.save(data)
+
+
+class Application():
+    def __init__(self, config):
+        self.config = config
+
+    def run(self):
+        username = self.config.get("username","гость")
+        print(f"Hello,{username}")
+
+    def set_username(self, name):
+        self.config.set("username", name)
+
+config = Config("settings.json")
+ap = Application(config)
+ap.set_username("Иван")
+ap.run()

Final control/4/TASK.md

@@ -25,7 +25,7 @@
 
 **Тесты:**
 
-1. Создайте `Config("settings.json")` и `Application(config)`
+1. Создайте `Config("settings.json")` и ``Application(config)
 2. Запустите приложение (должно вывести "Гость")
 3. Установите имя через `set_username("Иван")`
 4. Запустите снова (должно вывести "Иван")